Cometic 4.340 MLS Head Gasket .040 - 426 Hemi NecksGen 600 " BoreSince 1989

600 " BoreSince 1989

and DFX series clutches

Transmission Gear Selector

torque and throttle response right out of the box

and the nipple pilot prevents damage to the inner tube

Cometic 4.340 MLS Head Gasket .040 - 426 Hemi NecksGen 600 " BoreSince 1989Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two